Mechano‐chemical functionalization of carbon nanotubes

Abstract

Short, functionalized multiwall carbon nanotubes were prepared by a simple mechano‐chemical way. The fundamental idea of our method is breaking of the nanotubes under reactive gas atmosphere such as CO, COCl2, Cl2, NH3, CH3SH in a ball mill. During this ball milling procedure the tube length decreased to 200–300 nm, while the specific surface area increased by about 20% and the inner pore of the nanotubes became accessible.